and for our president to be so moved by mandela, to really have his own place in the civil rights struggle against apartheid i think makes it very meaningful. his presence will be significant. >> when it comes to president obama's presence on the international stage, we know he's talking about this potential for comprehensive agreement with iran yesterday. he said it's 50/50 or, frankly, it could be worse. his approval numbers very low here. when it comes to the international stage, how is his capital right now? >> i don't think it's exceedingly high. i think a lot of america's allies, particularly in the middle east from israel to some of the gulf countries think america has lost its nerve in some regard, particularly when it comes to confronting iran. so i think there is some difficulty with ourbili because our economic standing has some impact as well. it doesn't diminish america's overall power in the world and america's real influence in the world. that is still very, very strong, even if some people have doubts about president obama. >> how much of a focus is there for president obam